Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A flaw was discovered in the udmabuf device driver of the Linux kernel, within a fault handler. This issue arises due to the lack of proper validation of user-supplied data, which can lead to memory access beyond the end of an array. This may allow an attacker to escalate privileges and execute...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1, and Linux 5.10

A use-after-free vulnerability in the Linux kernel’s netfilter:nftables component can be exploited to achieve local privilege escalation. Adding or removing rules from chain bindings within the same transaction can lead to use-after-free issues. We recommend upgrading to the version after the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tipc: The process of creating a BC link has been moved back to tipcnodecreate. Shuang Li reported a NULL pointer dereference crash: - Bug: NULL pointer dereference in the kernel; address: 0000000000000068 - RIP: 0010:...

Astra Linux – Vulnerability in Linux

A issue was discovered in the Linux kernel before version 5.10. The file drivers/infiniband/core/ucma.c contains a use-after-free, as the context of the ctx variable is accessed through ctxlist in certain situations where ucmamigrateid is called, specifically when ucmaclose is invoked. This issue...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Enhanced the attribute size check This combines the overflow and boundary check so that all attribute sizes will be properly examined during enumeration. 169.181521 BUG: KASAN: Out-of-bounds access in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered The powersupply framework is not actually designed to have long-term references to powersupply devices in the kernel. Specifically, unregistering a...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Added a check for a valid ‘madagent’ pointer. When unregistering an MAD agent, the srpt module performs a non-null check on the ‘madagent’ pointer before invoking ibunregistermadagent. This check can fail if the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305glue.c:198 poly1305updatearch error: memcpy 'dctx-buf' too small 16 vs u32max This issue arises because Smatch marks ‘linklen’...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: EFI: Runtime: Avoid EFIv2 runtime services on Apple x86 machines Aditya reports that his recent MacBookPro crashes during firmware updates when variable services are used at runtime. The culprit seems to be a call to...

Astra Linux – Vulnerability in Linux, Linux 5.10

A NULL pointer dereference flaw was discovered in the btrfsrmdevice function in fs/btrfs/volumes.c within the Linux Kernel. Triggering this bug requires ‘CAPSYSADMIN’. This flaw allows a local attacker to crash the system or leak internal kernel information. The greatest threat posed by this...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A vulnerability has been discovered in the Linux kernel. It has been classified as problematic. The affected function is nilfsnew inode in the file fs/nilfs2/inode.c of the BPF component. This vulnerability allows for manipulation after the memory allocation function free is called. The attack ca...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: fsl-asoc-card: Set priv-pdev before using it The priv-pdev pointer was set after it was used in fslasoccardaudmuxinit. This assignment should be moved to the beginning of the probe function, so that sub-functions can...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netlink: prevents potential Spectre v1 exploits Most netlink attributes are parsed and validated via nlavalidateparse or validatenla. c u16 type = nlatypenla; if type == 0 || type maxtype / Error or continue / The @type value is...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: serial: mxs-auart: add a spinlock around changing the CTS state The uarthandlectschange function in serialcore expects the caller to hold uport-lock. For example, I observed the following kernel error during the loading of the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nvme: tcp: avoid race between queuelock lock and destroy Commit 76d54bf20cdc "nvme-tcp: don’t access released sockets during error recovery" added a mutexlock call for the queue-queuelock in nvmetcpgetaddress. However, the...

Astra Linux – Vulnerability in Linux 5.10

A use-after-free flaw was discovered in the Linux kernel’s Ext4 File System, where a user can trigger multiple file operations simultaneously using the overlay FS mechanism. This flaw allows a local user to crash the system or potentially escalate their privileges on the system. Only if patch...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/msm/hdmi: check the return value after calling platformgetresourcebyname. If platformgetresourcebyname returns NULL, it may lead to a null-ptr-deref issue. Therefore, we need to check the return value. Patchwork:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: x86/iopl: Fixed inconsistencies in TIFIOBITMAP The function iobitmapexit is called from exitthread, when a task exists or when a fork fails. In the latter case, exitthread cleans up resources that were allocated during fork...

Astra Linux – Vulnerability in Linux 5.10

A issue was discovered in the Linux kernel through version 5.16-rc6. The ef100updatestats function in drivers/net/ethernet/sfc/ef100nic.c lacks a check for the return value of kmalloc...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sched/core: Do not requeue tasks on CPUs excluded from cpusmask. The following warning was triggered on a large machine during boot time in a distribution kernel; the same issue should also affect the mainline version of the...